$X$ denotes the height of soldiers that is normally distributed with $\mu = 68.22$ in and $\sigma = 10.8$ in$^2$. How many soldiers in a regiment of 1000 would you expect to be over 6 feet tall?
2026-03-29 12:03:36.1774785816
statistics questions soldier
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Sq. in. can't be right for the population SD. (Squared units would be appropriate for a population variance, not for a population SD; I wonder whether 10.8 sq.in. is a reasonable variance for soldiers.)
This is not a 'do your homework' site, so here is an outline for when you are ready to do the work:
If you mean $X \sim NORM(\mu=68.22, \sigma^2=10.8),$ then standardize to get $P(X > 72),$ using a normal table. Multiply by 1000. The answer I got rounds to about 125.
The probability you want is represented by the area under the curve and to the right of the vertical red line.